JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
    <div id="feedback_button">
    
    </div>
</div>

CSS

.container{
    height: 100px;
    width: 100px;
    position: relative;
}
  #feedback_button {
       background: url("http://air-staging-assets.s3.amazonaws.com/assets/feedback_icon.png") 0 0 no-repeat transparent;
    height: 67px;
    width: 67px;
    position: fixed;
    bottom: 0;
    right: 0;
}